混合动力客车制动能量回馈及控制仿真研究

Study of Braking Energy Recovery and Control Strategy for Hybrid Electric Bus

基于AVL Cruise软件建立了并联式混合动力客车模型,设计了并联混合动力客车控制策略,在纯电机制动模式和机电混合制动模式下对混合动力客车的能量再生制动进行了仿真。仿真结果表明:在纯电机制动模式下能较充分回收汽车制动动能,但是制动效能较低;在机电混合制动模式下,制动效能高,与纯机械制动效能基本一致,但电机再生制动回收能量的效果不很明显。

Based on the AVL Cruise software, this paper establishes the simulation model of the hybrid electric bus and designs its control strategy, and the regenerative braking performance is simulated in the pure electric braking mode and the electrical and mechanical hybrid braking mode for a hybrid electric bus. Simulation results show that the pure electric braking mode has a full recovery for the vehicle braking energy, but the braking efficiency is lower; however, in the electrical and mechani cal hybrid-braking mode, a high-performance braking is acquired and basically the same with the pure mechanical braking performance, but the effect of regenerative braking energy is not obvious.